Makes · GMC · GMC Sierra 2500HD
2021 GMC Sierra 2500HD towing capacity
Trim-level maximum towing capacity — 14,000 lbs across packages. Exact capacity depends on configuration. Payload is separate from towing capacity and is shown where GVWR and curb weight (or manufacturer payload) exist.
Tow Planner
Select your exact configuration and tell us what you're towing. We'll compare trailer weight, payload, tongue weight and the available vehicle limits. Year-level towing and payload answers below are available without selecting a configuration.
Which configuration do you have?
32 configurations
32 possible configurations match your selections.
What are you trying to do?
Choose a job to open interactive tools. Year-level towing and payload answers appear below even before you pick a configuration.
What can a 2021 GMC Sierra 2500HD tow?
In our dataset, 32 configurations list a maximum trailer rating of 14,000 lbs. Confirm the figure for your exact build.
- Minimum published towing capacity in this dataset: 14,000 lbs
- Maximum published towing capacity in this dataset: 14,000 lbs
- Configurations with a towing rating: 32 of 32
Highest-rated example: AT4 · 4x4 · Crew Cab — 14,000 lbs
Lowest-rated example: SLT · 4x4 — 14,000 lbs
Highest towing configurations
Top configurations by published maximum trailer rating for the 2021 GMC Sierra 2500HD. Payload is shown only when present in the dataset.
| Trim | Cab | Drivetrain | Bed | Axle ratio | Max towing | Payload |
|---|---|---|---|---|---|---|
| AT4 | Crew Cab | 4x4 | 6.75 ft | 3.73 | 14,000 lbs | 3,798 lbs |
| AT4 | Crew Cab | 4x4 | 8 ft | 3.73 | 14,000 lbs | 3,900 lbs |
| Base | Crew Cab | 4x2 | 6.75 ft | 3.73 | 14,000 lbs | 3,617 lbs |
| Base | Crew Cab | 4x2 | 8 ft | 3.73 | 14,000 lbs | 3,667 lbs |
| Base | Double Cab | 4x2 | 6.75 ft | 3.73 | 14,000 lbs | 3,629 lbs |
| Base | Double Cab | 4x2 | 8 ft | 3.73 | 14,000 lbs | 3,658 lbs |
| Base | Regular Cab | 4x2 | 8 ft | 3.73 | 14,000 lbs | 3,795 lbs |
| Base | Crew Cab | 4x4 | 6.75 ft | 3.73 | 14,000 lbs | 3,626 lbs |
| Base | Crew Cab | 4x4 | 8 ft | 3.73 | 14,000 lbs | 3,728 lbs |
| Base | Double Cab | 4x4 | 6.75 ft | 3.73 | 14,000 lbs | 3,614 lbs |
Towing capacity by drivetrain
2021 GMC Sierra 2500HD 4x2 towing capacity
Range: 14,000 lbs (median 14,000 lbs) across 14 configurations in this dataset.
2021 GMC Sierra 2500HD 4x4 towing capacity
Range: 14,000 lbs (median 14,000 lbs) across 18 configurations in this dataset.
Towing capacity by cab style
2021 GMC Sierra 2500HD Crew Cab towing capacity
Observed range: 14,000 lbs (16 configurations).
2021 GMC Sierra 2500HD Double Cab towing capacity
Observed range: 14,000 lbs (12 configurations).
2021 GMC Sierra 2500HD Regular Cab towing capacity
Observed range: 14,000 lbs (4 configurations).
Towing capacity by axle ratio
| Axle ratio | Towing range | Configurations |
|---|---|---|
| 3.73 | 14,000 lbs | 32 |
2021 GMC Sierra 2500HD payload capacity
Payload is not the same as towing capacity. Where both GVWR and curb weight exist in the catalog, payload is GVWR minus curb weight (or the manufacturer payload field when present). Payload covers people, cargo in the truck, hitch equipment, and trailer tongue weight — not the full trailer weight.
- Observed payload range: 3,614 – 3,900 lbs
- Configurations with payload data: 32
Highest-payload configurations
- AT4 · 4x4 · Crew Cab — 3,900 lbs
- Denali · 4x4 · Crew Cab — 3,900 lbs
- SLT · 4x4 · Crew Cab — 3,900 lbs
- SLT · 4x4 · Double Cab — 3,892 lbs
- SLT · 4x2 · Crew Cab — 3,838 lbs
Quick configuration comparison
Observed towing ranges from the 2021 GMC Sierra 2500HD dataset. Values are min–max of published ratings in each group — not a claim that every unit in the group can tow the top figure.
Drivetrain
| Drivetrain | Towing range | Configs |
|---|---|---|
| 4x2 | 14,000 lbs | 14 |
| 4x4 | 14,000 lbs | 18 |
Cab styles
| Cab | Towing range | Configs |
|---|---|---|
| Crew Cab | 14,000 lbs | 16 |
| Double Cab | 14,000 lbs | 12 |
| Regular Cab | 14,000 lbs | 4 |
Bed lengths
| Bed | Towing range | Configs |
|---|---|---|
| 6.75 ft | 14,000 lbs | 14 |
| 8 ft | 14,000 lbs | 18 |
Why does towing capacity vary for this vehicle?
Towing ratings vary across configurations. These are configuration differences present in our dataset:
- Drivetrain: 4x2, 4x4
- Cab styles: Crew Cab, Double Cab, Regular Cab
- Bed lengths: 6.75 ft, 8 ft
- Published towing range: 14,000 lbs
Compare this vehicle
Preselected: 2021 GMC Sierra 2500HD. Pick a second vehicle on the compare page.
Towing capacity by trim
| Trim | Max towing | Curb weight | Payload* | HP | Torque | Axle | Wheelbase |
|---|---|---|---|---|---|---|---|
| AT4 4x4 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,852 lbs | 3,798 lbs | 401 | 464 | 3.73 | 158.9 |
| AT4 4x4 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,950 lbs | 3,900 lbs | 401 | 464 | 3.73 | 172.0 |
| Base 4x2 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,533 lbs | 3,617 lbs | 401 | 464 | 3.73 | 158.9 |
| Base 4x2 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,633 lbs | 3,667 lbs | 401 | 464 | 3.73 | 172.0 |
| Base 4x2 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,421 lbs | 3,629 lbs | 401 | 464 | 3.73 | 149.4 |
| Base 4x2 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,542 lbs | 3,658 lbs | 401 | 464 | 3.73 | 162.5 |
| Base 4x2 Regular Cab 8 ft. box 141.6 in. WB | 14,000 lbs | 6,105 lbs | 3,795 lbs | 401 | 464 | 3.73 | 141.6 |
| Base 4x4 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,824 lbs | 3,626 lbs | 401 | 464 | 3.73 | 158.9 |
| Base 4x4 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,922 lbs | 3,728 lbs | 401 | 464 | 3.73 | 172.0 |
| Base 4x4 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,736 lbs | 3,614 lbs | 401 | 464 | 3.73 | 149.4 |
| Base 4x4 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,829 lbs | 3,671 lbs | 401 | 464 | 3.73 | 162.5 |
| Base 4x4 Regular Cab 8 ft. box 141.6 in. WB | 14,000 lbs | 6,418 lbs | 3,832 lbs | 401 | 464 | 3.73 | 141.6 |
| Denali 4x4 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,852 lbs | 3,798 lbs | 401 | 464 | 3.73 | 158.9 |
| Denali 4x4 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,950 lbs | 3,900 lbs | 401 | 464 | 3.73 | 172.0 |
| SLE 4x2 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,533 lbs | 3,617 lbs | 401 | 464 | 3.73 | 158.9 |
| SLE 4x2 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,633 lbs | 3,667 lbs | 401 | 464 | 3.73 | 172.0 |
| SLE 4x2 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,421 lbs | 3,629 lbs | 401 | 464 | 3.73 | 149.4 |
| SLE 4x2 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,542 lbs | 3,658 lbs | 401 | 464 | 3.73 | 162.5 |
| SLE 4x2 Regular Cab 8 ft. box 141.6 in. WB | 14,000 lbs | 6,105 lbs | 3,795 lbs | 401 | 464 | 3.73 | 141.6 |
| SLE 4x4 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,824 lbs | 3,626 lbs | 401 | 464 | 3.73 | 158.9 |
| SLE 4x4 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,922 lbs | 3,728 lbs | 401 | 464 | 3.73 | 172.0 |
| SLE 4x4 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,736 lbs | 3,614 lbs | 401 | 464 | 3.73 | 149.4 |
| SLE 4x4 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,829 lbs | 3,671 lbs | 401 | 464 | 3.73 | 162.5 |
| SLE 4x4 Regular Cab 8 ft. box 141.6 in. WB | 14,000 lbs | 6,418 lbs | 3,832 lbs | 401 | 464 | 3.73 | 141.6 |
| SLT 4x2 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,562 lbs | 3,788 lbs | 401 | 464 | 3.73 | 158.9 |
| SLT 4x2 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,662 lbs | 3,838 lbs | 401 | 464 | 3.73 | 172.0 |
| SLT 4x2 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,450 lbs | 3,800 lbs | 401 | 464 | 3.73 | 149.4 |
| SLT 4x2 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,570 lbs | 3,830 lbs | 401 | 464 | 3.73 | 162.5 |
| SLT 4x4 Crew Cab 6.75 ft. box 158.9 in. WB | 14,000 lbs | 6,852 lbs | 3,798 lbs | 401 | 464 | 3.73 | 158.9 |
| SLT 4x4 Crew Cab 8 ft. box 172 in. WB | 14,000 lbs | 6,950 lbs | 3,900 lbs | 401 | 464 | 3.73 | 172.0 |
| SLT 4x4 Double Cab 6.75 ft. box 149.4 in. WB | 14,000 lbs | 6,765 lbs | 3,785 lbs | 401 | 464 | 3.73 | 149.4 |
| SLT 4x4 Double Cab 8 ft. box 162.5 in. WB | 14,000 lbs | 6,858 lbs | 3,892 lbs | 401 | 464 | 3.73 | 162.5 |
* Payload = manufacturer payload when present, otherwise GVWR − curb weight. Towing capacity is a separate rating and is not the same as payload.
What affects the rating
Higher figures usually need the tow package, the right axle ratio, and enough cooling. Passengers, fuel, gear, and tongue weight all eat into what you can safely pull — stay under both the trailer rating and the vehicle’s payload.